Friend of Charleston church shooter Dylann Roof arrested

A friend of Charleston church shooter Dylann Roof was arrested Thursday, a source close to the investigation said.

The source did not specify the charges.

Joseph Meek, Jr., 21, was friends with Roof, the white man who opened fire on the historic black church Emanuel African Methodist Church in Charleston on June 17, killing nine people in what authorities have called a racially-motivated attack.

Meek received a so-called “target letter” earlier this month that said he was under investigation for making false statements to investigators and for knowing about a crime before or after it was committed but failing to report it, The Associated Press reported.